20231535700 has 36 divisors (see below), whose sum is σ = 43967428092. Its totient is φ = 8080633600.

The previous prime is 20231535683. The next prime is 20231535719. The reversal of 20231535700 is 753513202.

It can be written as a sum of positive squares in 6 ways, for example, as 713210436 + 19518325264 = 26706^2 + 139708^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81721 + ... + 217120.

It is an arithmetic number, because the mean of its divisors is an integer number (1221317447).

Almost surely, 2^20231535700 is an apocalyptic number.

20231535700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20231535700 is an abundant number, since it is smaller than the sum of its proper divisors (23735892392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20231535700 is a wasteful number, since it uses less digits than its factorization.

20231535700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299532 (or 299525 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 28.

The spelling of 20231535700 in words is "twenty billion, two hundred thirty-one million, five hundred thirty-five thousand, seven hundred".